Mathematics Questions:
1. Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
A.2: 5
B.3: 5
C.4: 5
D.6: 7
Answer (C)

2. In a mixture 60 litres, the ratio of milk and water 2: 1. If this ratio is to be 1: 2, then the quantity of water to be further added is:
A. 20 litres
B. 30 litres
C. 40 litres
D. 60 litres
Answer (D)